Addiction Flashcards
What are the three stages in the cycle of addiciton?
and the brain areas involved
binge/intoxication (dorsal striatum, VTA, cerebellum)
withdrawal/negatvie affect (BLA, CeA)
preoccupation/anticipation
(PFC, hippocampus)
What’s the fastest method of administration of a drug into brain?
inhalation
then injection, snorting, ingestion
What are the two main components of addiction
tolerance (decrease of behavioural response after repeat administration of same dose)
dependence (altered physiological state induced by long-term exposure that leads to withdrawal syndrome on cessation) `
Name 3 neuronal changes in addiction
- altered number of binding sites
- synapse rearragement
- neuroplasticity
- learning
Three areas activated by the release of dopamine
Prefrontal cortex
Ventral Tegmental Area
Nucleus accumbens
Temperance model
the drug is dangerous and causes the problem.
ABSTINENCE
Moral model
People can always choose not to use alcohol/drugs
Disease model
complete loss of control when drug is used
medical model
number of medical factors puts person more at risk of problems (like runs in family)
psychodynamic models
alcohol/drug problems are related to psychodynamic factors (early childhood experiences/trauma) - I have an addictive personality. MALADAPTIVE COPING
Sociocultural model
sociocultural factors increase the risk of problems in a population and are to blame (neighbourhood)
Systems/family models
for the person to change, need to consider relationships and change within the system (can’t be sober and deal with my family)
Learning models
learned behaviour
Pavlov Model
classical conditioning
through associative learning (dog and bell and food)
Skinner Model of operant conditioning
through instrumental learning (based on principles of reinforcement via increasing freq of behaviour or punish
